Python SpacegroupAnalyzer.get_spacegroup_symbol方法代码示例

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def add_snl(self, snl, force_new=False, snlgroup_guess=None):
        try:
            self.lock_db()
            snl_id = self._get_next_snl_id()

            spstruc = snl.structure.copy()
            spstruc.remove_oxidation_states()
            sf = SpacegroupAnalyzer(spstruc, SPACEGROUP_TOLERANCE, ANGLE_TOLERANCE)
            sf.get_spacegroup()
            sgnum = sf.get_spacegroup_number() if sf.get_spacegroup_number() \
                else -1
            sgsym = sf.get_spacegroup_symbol() if sf.get_spacegroup_symbol() \
                else 'unknown'
            sghall = sf.get_hall() if sf.get_hall() else 'unknown'
            sgxtal = sf.get_crystal_system() if sf.get_crystal_system() \
                else 'unknown'
            sglatt = sf.get_lattice_type() if sf.get_lattice_type() else 'unknown'
            sgpoint = sf.get_point_group()

            mpsnl = MPStructureNL.from_snl(snl, snl_id, sgnum, sgsym, sghall,
                                           sgxtal, sglatt, sgpoint)
            snlgroup, add_new, spec_group = self.add_mpsnl(mpsnl, force_new, snlgroup_guess)
            self.release_lock()
            return mpsnl, snlgroup.snlgroup_id, spec_group
        except:
            self.release_lock()
            traceback.print_exc()
            raise ValueError("Error while adding SNL!")

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
 def test_tricky_structure(self):
     # for some reason this structure kills spglib1.9
     # 1.7 can't find symmetry either, but at least doesn't kill python
     s = Structure.from_file(os.path.join(test_dir, 'POSCAR.tricky_symmetry'))
     sa = SpacegroupAnalyzer(s, 0.1)
     sa.get_spacegroup_symbol()
     sa.get_spacegroup_number()
     sa.get_point_group()
     sa.get_crystal_system()
     sa.get_hall()

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
 def test_magnetic(self):
     lfp = PymatgenTest.get_structure("LiFePO4")
     sg = SpacegroupAnalyzer(lfp, 0.1)
     self.assertEqual(sg.get_spacegroup_symbol(), "Pnma")
     magmoms = [0] * len(lfp)
     magmoms[4] = 1
     magmoms[5] = -1
     magmoms[6] = 1
     magmoms[7] = -1
     lfp.add_site_property("magmom", magmoms)
     sg = SpacegroupAnalyzer(lfp, 0.1)
     self.assertEqual(sg.get_spacegroup_symbol(), "Pnma")

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
def print_spg(src="POSCAR"):
    srcpos = Poscar.from_file(src)
    finder = SpacegroupAnalyzer(srcpos.structure, symprec=5e-2, angle_tolerance=8)
    spg = finder.get_spacegroup_symbol()
    spg_num = finder.get_spacegroup_number()
    print(spg)
    print(spg_num)

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
def unique_symmetry_operations_as_vectors_from_structure( structure, subset = None ):
    """
    Uses pymatgen symmetry analysis to find the minimum complete set of symmetry operations for the space group of a structure.

    Args:
        structure (pymatgen Structure): structure to be analysed.
        subset    (Optional [list]):    list of atom indices to be used for generating the symmetry operations

    Returns:
        a list of lists, containing the symmetry operations as vector mappings.
    """
    symmetry_analyzer = SpacegroupAnalyzer( structure )

    print( "The spacegroup for structure is {}".format(symmetry_analyzer.get_spacegroup_symbol()) )

    symmetry_operations = symmetry_analyzer.get_symmetry_operations()

    mappings = []
    if subset:
        species_subset = [ spec for i,spec in enumerate(structure.species) if i in subset]
        frac_coords_subset = [ coord for i, coord in enumerate( structure.frac_coords ) if i in subset ]
        mapping_structure = Structure( structure.lattice, species_subset, frac_coords_subset ) 
    else:
        mapping_structure = structure

    for symmop in symmetry_operations:
        new_structure = Structure( mapping_structure.lattice, mapping_structure.species, symmop.operate_multi( mapping_structure.frac_coords ) )
        new_mapping = [ x+1 for x in list( coord_list_mapping_pbc( new_structure.frac_coords, mapping_structure.frac_coords ) ) ]
        if new_mapping not in mappings:
            mappings.append( new_mapping )

    return mappings

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
def create_structure_db_info(structure, spacegroup=None):
    # Figure out the symmetry group
    if not spacegroup:
        spacegroup = SpacegroupAnalyzer(structure, normalised_symmetry_precision(structure), -1)

    d = dict()
    # Set the composition and formulas for the system
    comp = structure.composition
    el_amt = structure.composition.get_el_amt_dict()
    d.update({"unit_cell_formula": comp.to_dict,
              "reduced_cell_formula": comp.to_reduced_dict,
              "elements": list(el_amt.keys()),
              "nelements": len(el_amt),
              "pretty_formula": comp.reduced_formula,
              "anonymous_formula": comp.anonymized_formula,
              "nsites": comp.num_atoms,
              "chemsys": "-".join(sorted(el_amt.keys()))})

    d["spacegroup"] = {"symbol": unicode(spacegroup.get_spacegroup_symbol(),
                                         errors="ignore"),
                       "number": spacegroup.get_spacegroup_number(),
                       "point_group": unicode(spacegroup.get_point_group(),
                                              errors="ignore"),
                       "source": "spglib",
                       "crystal_system": spacegroup.get_crystal_system(),
                       "hall": spacegroup.get_hall()}

    return d

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def complete_ordering(self, structure, num_remove_dict):
        self.logger.debug("Performing complete ordering...")
        all_structures = []
        symprec = 0.2
        s = SpacegroupAnalyzer(structure, symprec=symprec)
        self.logger.debug("Symmetry of structure is determined to be {}."
                          .format(s.get_spacegroup_symbol()))
        sg = s.get_spacegroup()
        tested_sites = []
        starttime = time.time()
        self.logger.debug("Performing initial ewald sum...")
        ewaldsum = EwaldSummation(structure)
        self.logger.debug("Ewald sum took {} seconds."
                          .format(time.time() - starttime))
        starttime = time.time()

        allcombis = []
        for ind, num in num_remove_dict.items():
            allcombis.append(itertools.combinations(ind, num))

        count = 0
        for allindices in itertools.product(*allcombis):
            sites_to_remove = []
            indices_list = []
            for indices in allindices:
                sites_to_remove.extend([structure[i] for i in indices])
                indices_list.extend(indices)
            s_new = structure.copy()
            s_new.remove_sites(indices_list)
            energy = ewaldsum.compute_partial_energy(indices_list)
            already_tested = False
            for i, tsites in enumerate(tested_sites):
                tenergy = all_structures[i]["energy"]
                if abs((energy - tenergy) / len(s_new)) < 1e-5 and \
                        sg.are_symmetrically_equivalent(sites_to_remove,
                                                        tsites,
                                                        symm_prec=symprec):
                    already_tested = True

            if not already_tested:
                tested_sites.append(sites_to_remove)
                all_structures.append({"structure": s_new, "energy": energy})

            count += 1
            if count % 10 == 0:
                timenow = time.time()
                self.logger.debug("{} structures, {:.2f} seconds."
                                  .format(count, timenow - starttime))
                self.logger.debug("Average time per combi = {} seconds"
                                  .format((timenow - starttime) / count))
                self.logger.debug("{} symmetrically distinct structures found."
                                  .format(len(all_structures)))

        self.logger.debug("Total symmetrically distinct structures found = {}"
                          .format(len(all_structures)))
        all_structures = sorted(all_structures, key=lambda s: s["energy"])
        return all_structures

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
 def print_spg(src='POSCAR'):
     """
     space group を return
     """
     srcpos = Poscar.from_file(src)
     finder = SpacegroupAnalyzer(srcpos.structure,
                                 symprec=5e-2, angle_tolerance=8)
     spg = finder.get_spacegroup_symbol()
     spg_num = finder.get_spacegroup_number()
     return spg, spg_num

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def run_task(self, fw_spec):
        btrap_dir = os.path.join(os.getcwd(), "boltztrap")
        bta = BoltztrapAnalyzer.from_files(btrap_dir)
        d = bta.as_dict()
        d["boltztrap_dir"] = btrap_dir

        # trim the output
        for x in ['cond', 'seebeck', 'kappa', 'hall', 'mu_steps',
                  'mu_doping', 'carrier_conc']:
            del d[x]

        if not self.get("hall_doping"):
            del d["hall_doping"]

        # add the structure
        bandstructure_dir = os.getcwd()
        v, o = get_vasprun_outcar(bandstructure_dir, parse_eigen=False,
                                  parse_dos=False)
        structure = v.final_structure
        d["structure"] = structure.as_dict()
        d.update(get_meta_from_structure(structure))
        d["bandstructure_dir"] = bandstructure_dir

        # add the spacegroup
        sg = SpacegroupAnalyzer(Structure.from_dict(d["structure"]), 0.1)
        d["spacegroup"] = {"symbol": sg.get_spacegroup_symbol(),
                           "number": sg.get_spacegroup_number(),
                           "point_group": sg.get_point_group(),
                           "source": "spglib",
                           "crystal_system": sg.get_crystal_system(),
                           "hall": sg.get_hall()}

        d["created_at"] = datetime.utcnow()

        db_file = env_chk(self.get('db_file'), fw_spec)

        if not db_file:
            with open(os.path.join(btrap_dir, "boltztrap.json"), "w") as f:
                f.write(json.dumps(d, default=DATETIME_HANDLER))
        else:
            mmdb = MMDb.from_db_file(db_file, admin=True)

            # dos gets inserted into GridFS
            dos = json.dumps(d["dos"], cls=MontyEncoder)
            fsid, compression = mmdb.insert_gridfs(
                dos, collection="dos_boltztrap_fs", compress=True)
            d["dos_boltztrap_fs_id"] = fsid
            del d["dos"]

            mmdb.db.boltztrap.insert(d)

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def _get_data_from_single_dirc(dirc, src_str="str_relax.out",
                                   src_ene='energy'):
        """
        指定したdircから構造とエネルギーを読み取る
        """
        src = os.path.join(dirc, src_str)
        strout = StrOut.from_file(src)

        src = os.path.join(dirc, src_ene)
        with open(src, 'r') as rfile:
            lines = rfile.readlines()
        num_atoms = sum(strout.structure.composition.
                        to_data_dict['unit_cell_composition'].values())
        energy = float(lines[0]) / num_atoms

        analyzer = SpacegroupAnalyzer(strout.structure)
        #std_prim = analyzer.get_primitive_standard_structure()
        std_str = analyzer.get_conventional_standard_structure()
        analyzer = SpacegroupAnalyzer(std_str)
        wyckoffs = analyzer.get_symmetry_dataset()['wyckoffs']
        formula = std_str.composition.to_data_dict['unit_cell_composition']

        symbol_spg = analyzer.get_spacegroup_symbol()
        num_spg = analyzer.get_spacegroup_number()
        spg = [symbol_spg, num_spg]

        lattice = std_str.as_dict()['lattice']

        equiv_sites = analyzer.get_symmetrized_structure().equivalent_sites
        equiv_indices = analyzer.get_symmetrized_structure().equivalent_indices
        # Wycoffs labelと組み合わせたsites_groupのlistを作る
        sites_and_wyckoffs = []
        for eq_s, eq_i in zip(equiv_sites, equiv_indices):
            sites_and_wyckoffs.append({'wyckoffs': wyckoffs[eq_i[0]],
                                       'site_grp': eq_s})
        # check
            for i in range(len(eq_i)-1):
                if wyckoffs[eq_i[i]] != wyckoffs[eq_i[i+1]] or \
                           len(eq_s) != len(eq_i):
                    print("wyckoffs label is wrong !!!!")
                    print(wyckoffs)
                    print(eq_i)
                    print(len(eq_s))
                    print(dirc)
                    exit()
        return {'formula': formula, 'lattice': lattice, 'spg': spg,
                'sites_and_wyckoffs': sites_and_wyckoffs, 'energy': energy,
                'str_id': os.path.basename(dirc)}

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
 def _make_struc_file(self, file_name):
     sym = SpacegroupAnalyzer(self._bs._structure, symprec=0.01)
     with open(file_name, 'w') as f:
         f.write(self._bs._structure.composition.formula+" " +
                 str(sym.get_spacegroup_symbol())+"\n")
         for i in range(3):
             line = ''
             for j in range(3):
                 line += "%12.5f" % (
                     Length(self._bs._structure.lattice.matrix[i][j],
                            "ang").to("bohr"))
             f.write(line+'\n')
         ops = sym.get_symmetry_dataset()['rotations']
         f.write(str(len(ops))+"\n")
         for c in ops:
             f.write('\n'.join([' '.join([str(int(i)) for i in row])
                                for row in c]))
             f.write('\n')

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
 def set_output_data(self, d_calc, d):
     """
     set the 'output' key
     """
     d["output"] = {
         "structure": d_calc["output"]["structure"],
         "density": d_calc.pop("density"),
         "energy": d_calc["output"]["energy"],
         "energy_per_atom": d_calc["output"]["energy_per_atom"]}
     d["output"].update(self.get_basic_processed_data(d))
     sg = SpacegroupAnalyzer(Structure.from_dict(d_calc["output"]["structure"]), 0.1)
     if not sg.get_symmetry_dataset():
         sg = SpacegroupAnalyzer(Structure.from_dict(d_calc["output"]["structure"]), 1e-3, 1)
     d["output"]["spacegroup"] = {
         "source": "spglib",
         "symbol": sg.get_spacegroup_symbol(),
         "number": sg.get_spacegroup_number(),
         "point_group": sg.get_point_group(),
         "crystal_system": sg.get_crystal_system(),
         "hall": sg.get_hall()}
     if d["input"]["parameters"].get("LEPSILON"):
         for k in ['epsilon_static', 'epsilon_static_wolfe', 'epsilon_ionic']:
             d["output"][k] = d_calc["output"][k]

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def __init__(self, struct, symprec=None):
        format_str = "{:.8f}"

        block = OrderedDict()
        loops = []
        latt = struct.lattice
        comp = struct.composition
        no_oxi_comp = comp.element_composition
        spacegroup = ("P 1", 1)
        if symprec is not None:
            sf = SpacegroupAnalyzer(struct, symprec)
            spacegroup = (sf.get_spacegroup_symbol(),
                          sf.get_spacegroup_number())
        block["_symmetry_space_group_name_H-M"] = spacegroup[0]
        for cell_attr in ['a', 'b', 'c']:
            block["_cell_length_" + cell_attr] = format_str.format(
                getattr(latt, cell_attr))
        for cell_attr in ['alpha', 'beta', 'gamma']:
            block["_cell_angle_" + cell_attr] = format_str.format(
                getattr(latt, cell_attr))
        block["_symmetry_Int_Tables_number"] = spacegroup[1]
        block["_chemical_formula_structural"] = no_oxi_comp.reduced_formula
        block["_chemical_formula_sum"] = no_oxi_comp.formula
        block["_cell_volume"] = latt.volume.__str__()

        reduced_comp, fu = no_oxi_comp.get_reduced_composition_and_factor()
        block["_cell_formula_units_Z"] = str(int(fu))

        if symprec is None:
            block["_symmetry_equiv_pos_site_id"] = ["1"]
            block["_symmetry_equiv_pos_as_xyz"] = ["x, y, z"]
        else:
            sf = SpacegroupAnalyzer(struct, symprec)

            def round_symm_trans(i):

                for t in TRANSLATIONS.values():
                    if abs(i - t) < symprec:
                        return t
                if abs(i - round(i)) < symprec:
                    return 0
                raise ValueError("Invalid translation!")

            symmops = []
            for op in sf.get_symmetry_operations():
                v = op.translation_vector
                v = [round_symm_trans(i) for i in v]
                symmops.append(SymmOp.from_rotation_and_translation(
                    op.rotation_matrix, v))

            ops = [op.as_xyz_string() for op in symmops]
            block["_symmetry_equiv_pos_site_id"] = \
                ["%d" % i for i in range(1, len(ops) + 1)]
            block["_symmetry_equiv_pos_as_xyz"] = ops

        loops.append(["_symmetry_equiv_pos_site_id",
                      "_symmetry_equiv_pos_as_xyz"])

        contains_oxidation = True
        try:
            symbol_to_oxinum = OrderedDict([
                (el.__str__(), float(el.oxi_state))
                for el in sorted(comp.elements)])
        except AttributeError:
            symbol_to_oxinum = OrderedDict([(el.symbol, 0) for el in
                                            sorted(comp.elements)])
            contains_oxidation = False
        if contains_oxidation:
            block["_atom_type_symbol"] = symbol_to_oxinum.keys()
            block["_atom_type_oxidation_number"] = symbol_to_oxinum.values()
            loops.append(["_atom_type_symbol", "_atom_type_oxidation_number"])

        atom_site_type_symbol = []
        atom_site_symmetry_multiplicity = []
        atom_site_fract_x = []
        atom_site_fract_y = []
        atom_site_fract_z = []
        atom_site_label = []
        atom_site_occupancy = []
        count = 1
        if symprec is None:
            for site in struct:
                for sp, occu in site.species_and_occu.items():
                    atom_site_type_symbol.append(sp.__str__())
                    atom_site_symmetry_multiplicity.append("1")
                    atom_site_fract_x.append("{0:f}".format(site.a))
                    atom_site_fract_y.append("{0:f}".format(site.b))
                    atom_site_fract_z.append("{0:f}".format(site.c))
                    atom_site_label.append("{}{}".format(sp.symbol, count))
                    atom_site_occupancy.append(occu.__str__())
                    count += 1
        else:
            # The following just presents a deterministic ordering.
            unique_sites = [
                (sorted(sites, key=lambda s: tuple([abs(x) for x in
                                                   s.frac_coords]))[0],
                 len(sites))
                for sites in sf.get_symmetrized_structure().equivalent_sites
            ]
            for site, mult in sorted(
#.........这里部分代码省略.........

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
class HighSymmKpath(object):
    """
    This class looks for path along high symmetry lines in
    the Brillouin Zone.
    It is based on Setyawan, W., & Curtarolo, S. (2010).
    High-throughput electronic band structure calculations:
    Challenges and tools. Computational Materials Science,
    49(2), 299-312. doi:10.1016/j.commatsci.2010.05.010
    The symmetry is determined by spglib through the
    SpacegroupAnalyzer class

    Args:
        structure (Structure): Structure object
        symprec (float): Tolerance for symmetry finding
        angle_tolerance (float): Angle tolerance for symmetry finding.
    """

    def __init__(self, structure, symprec=0.01, angle_tolerance=5):
        self._structure = structure
        self._sym = SpacegroupAnalyzer(structure, symprec=symprec,
                                   angle_tolerance=angle_tolerance)
        self._prim = self._sym\
            .get_primitive_standard_structure(international_monoclinic=False)
        self._conv = self._sym.get_conventional_standard_structure(international_monoclinic=False)
        self._prim_rec = self._prim.lattice.reciprocal_lattice
        self._kpath = None

        lattice_type = self._sym.get_lattice_type()
        spg_symbol = self._sym.get_spacegroup_symbol()

        if lattice_type == "cubic":
            if "P" in spg_symbol:
                self._kpath = self.cubic()
            elif "F" in spg_symbol:
                self._kpath = self.fcc()
            elif "I" in spg_symbol:
                self._kpath = self.bcc()
            else:
                warn("Unexpected value for spg_symbol: %s" % spg_symbol)

        elif lattice_type == "tetragonal":
            if "P" in spg_symbol:
                self._kpath = self.tet()
            elif "I" in spg_symbol:
                a = self._conv.lattice.abc[0]
                c = self._conv.lattice.abc[2]
                if c < a:
                    self._kpath = self.bctet1(c, a)
                else:
                    self._kpath = self.bctet2(c, a)
            else:
                warn("Unexpected value for spg_symbol: %s" % spg_symbol)

        elif lattice_type == "orthorhombic":
            a = self._conv.lattice.abc[0]
            b = self._conv.lattice.abc[1]
            c = self._conv.lattice.abc[2]

            if "P" in spg_symbol:
                self._kpath = self.orc()

            elif "F" in spg_symbol:
                if 1 / a ** 2 > 1 / b ** 2 + 1 / c ** 2:
                    self._kpath = self.orcf1(a, b, c)
                elif 1 / a ** 2 < 1 / b ** 2 + 1 / c ** 2:
                    self._kpath = self.orcf2(a, b, c)
                else:
                    self._kpath = self.orcf3(a, b, c)

            elif "I" in spg_symbol:
                self._kpath = self.orci(a, b, c)

            elif "C" in spg_symbol:
                self._kpath = self.orcc(a, b, c)
            else:
                warn("Unexpected value for spg_symbol: %s" % spg_symbol)

        elif lattice_type == "hexagonal":
            self._kpath = self.hex()

        elif lattice_type == "rhombohedral":
            alpha = self._prim.lattice.lengths_and_angles[1][0]
            if alpha < 90:
                self._kpath = self.rhl1(alpha * pi / 180)
            else:
                self._kpath = self.rhl2(alpha * pi / 180)

        elif lattice_type == "monoclinic":
            a, b, c = self._conv.lattice.abc
            alpha = self._conv.lattice.lengths_and_angles[1][0]
            #beta = self._conv.lattice.lengths_and_angles[1][1]

            if "P" in spg_symbol:
                self._kpath = self.mcl(b, c, alpha * pi / 180)

            elif "C" in spg_symbol:
                kgamma = self._prim_rec.lengths_and_angles[1][2]
                if kgamma > 90:
                    self._kpath = self.mclc1(a, b, c, alpha * pi / 180)
                if kgamma == 90:
#.........这里部分代码省略.........

# 需要导入模块: from pymatgen.symmetry.analyzer import SpacegroupAnalyzer [as 别名]
# 或者: from pymatgen.symmetry.analyzer.SpacegroupAnalyzer import get_spacegroup_symbol [as 别名]
    def _gen_input_file(self):
        """
        Generate the necessary struct_enum.in file for enumlib. See enumlib
        documentation for details.
        """
        coord_format = "{:.6f} {:.6f} {:.6f}"

        # Using symmetry finder, get the symmetrically distinct sites.
        fitter = SpacegroupAnalyzer(self.structure, self.symm_prec)
        symmetrized_structure = fitter.get_symmetrized_structure()
        logger.debug("Spacegroup {} ({}) with {} distinct sites".format(
            fitter.get_spacegroup_symbol(),
            fitter.get_spacegroup_number(),
            len(symmetrized_structure.equivalent_sites))
        )

        """
        Enumlib doesn"t work when the number of species get too large. To
        simplify matters, we generate the input file only with disordered sites
        and exclude the ordered sites from the enumeration. The fact that
        different disordered sites with the exact same species may belong to
        different equivalent sites is dealt with by having determined the
        spacegroup earlier and labelling the species differently.
        """

        # index_species and index_amounts store mappings between the indices
        # used in the enum input file, and the actual species and amounts.
        index_species = []
        index_amounts = []

        #Stores the ordered sites, which are not enumerated.
        ordered_sites = []
        disordered_sites = []
        coord_str = []
        for sites in symmetrized_structure.equivalent_sites:
            if sites[0].is_ordered:
                ordered_sites.append(sites)
            else:
                sp_label = []
                species = {k: v for k, v in sites[0].species_and_occu.items()}
                if sum(species.values()) < 1 - EnumlibAdaptor.amount_tol:
                    #Let us first make add a dummy element for every single
                    #site whose total occupancies don't sum to 1.
                    species[DummySpecie("X")] = 1 - sum(species.values())
                for sp in species.keys():
                    if sp not in index_species:
                        index_species.append(sp)
                        sp_label.append(len(index_species) - 1)
                        index_amounts.append(species[sp] * len(sites))
                    else:
                        ind = index_species.index(sp)
                        sp_label.append(ind)
                        index_amounts[ind] += species[sp] * len(sites)
                sp_label = "/".join(["{}".format(i) for i in sorted(sp_label)])
                for site in sites:
                    coord_str.append("{} {}".format(
                        coord_format.format(*site.coords),
                        sp_label))
                disordered_sites.append(sites)

        def get_sg_info(ss):
            finder = SpacegroupAnalyzer(Structure.from_sites(ss), self.symm_prec)
            sgnum = finder.get_spacegroup_number()
            return sgnum

        curr_sites = list(itertools.chain.from_iterable(disordered_sites))
        min_sgnum = get_sg_info(curr_sites)
        logger.debug("Disorderd sites has sgnum %d" % (
            min_sgnum))
        #It could be that some of the ordered sites has a lower symmetry than
        #the disordered sites.  So we consider the lowest symmetry sites as
        #disordered in our enumeration.
        self.ordered_sites = []
        to_add = []

        if self.check_ordered_symmetry:
            for sites in ordered_sites:
                temp_sites = list(curr_sites) + sites
                sgnum = get_sg_info(temp_sites)
                if sgnum < min_sgnum:
                    logger.debug("Adding {} to sites to be ordered. "
                                 "New sgnum {}"
                                 .format(sites, sgnum))
                    to_add = sites
                    min_sgnum = sgnum

        for sites in ordered_sites:
            if sites == to_add:
                index_species.append(sites[0].specie)
                index_amounts.append(len(sites))
                sp_label = len(index_species) - 1
                logger.debug("Lowest symmetry {} sites are included in enum."
                             .format(sites[0].specie))
                for site in sites:
                    coord_str.append("{} {}".format(
                        coord_format.format(*site.coords),
                        sp_label))
                disordered_sites.append(sites)
            else:
                self.ordered_sites.extend(sites)
#.........这里部分代码省略.........